Home / 39,172.20-54,057.42-21,267.06

Finding the Fourth Proportional to 39,172.20, 54,057.42 and 21,267.06

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Solution

The fourth proportional to 39,172.20, 54,057.42 and 21,267.06 is: 29,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.20 : 54,057.42 = 21,267.06 : x
  2. Step 2: Convert to fraction form
    39,172.20/54,057.42 = 21,267.06/x
  3. Step 3: Cross multiply
    39,172.20x = 54,057.42 × 21,267.06
  4. Step 4: Simplify right side
    39,172.20x = 1,149,642,394.59
  5. Step 5: Solve for x
    x = 1,149,642,394.59/39,172.20
  6. Step 6: Final answer
    x = 29,348.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.